#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
  ll odd, even;
  odd = even = 0;
  int n;
  cin >> n;
  while (n--) {
    int x;
    cin >> x;
    if (x & 1)
      odd++;
    else
      even++;
  }
  cout << (abs(odd - even) <= 1 ? "Good" : "Not Good");
}
